#include <iostream>
using namespace std;

int main() {
	std::string c("test");
	std::string d(c);
    std::cout << c << d << "\n";
	std::string e, f;
	e = c;
    std::cout << e << "\n";
	std::string g(move(e));
    std::cout << g << "\n";
	f = move(d);
    std::cout << f << "\n";
	return 0;
}
